I've been to Carn Goedog. It does look striking. It was a beautiful day, I sunbathed naked on the stones... until I saw a walker on the path below
I started looking out for a suitable stone to take but there was nothing small and pebbly. As I was clambering around I put my hand out to steady myself on the edge of a stone when I felt something move. I thought it was some sort of calcified moss (if there is such a thing) but it was a sliver of stone. I have it under my pillow.
Sometimes, at night, I can hear the Old Ones calling... calling... calling...
Either that or it's my digestive issues.
If I've done it right you can see some pics at the link below